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Bessel pulse beams and focus wave modes

Colin J. R. Sheppard

Author Affiliations

Colin J. R. Sheppard

Department of Physical Optics, School of Physics, University of Sydney, Sydney, NSW 2006, Australia, and The Australian Key Centre for Microscopy and Microanalysis, University of Sydney, Sydney, NSW 2006, Australia

Abstract

Free-space propagation of ultrashort pulses is investigated. Space–time couplings are reduced for a particular form of beams that is termed a pulse beam, or a type 3 pulsed beam. General conditions for the formation of pulse beams in the paraxial approximation are presented. The free-space propagation of spatially localized ultrashort laser pulses is investigated. This treatment is based on a particular pulsed form of the well-known Bessel beam, which is termed a Bessel pulse beam. The connections with focus wave modes and X waves are discussed.

References

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